Shoe sole-cementing machine



May 28, 1935. K. L. VENTERS SHOE SOLE CEMENTING MACHINE Filed Dec. 12,1932 INVENTOR.

Patented May 28, 1935 SHOE SOLE-CEMENTING MACHINE A Keith L. Venters,Eugene, Oreg.

ApplicationDecember 12, 1932, Serial No. 646,831

' 6 Claims.

The invention relates to improvements in shoe sole-cementing machines,in which is set forth a combination of shoe jack and cement press. 7 Theobjectsof 'improvement'are, first, to eliminate the necessity ofpreparing the shoe on a separate jack before it is taken to the cementpress, and, sec- 7 end, the use of self-inflating, air-filled, rubberpressure pads, eliminating the necessity of filling pad with water, orof using an air pump.

A pictorial illustration of this invention is found in the accompanyingdrawing.

A shoe sole-cementing machine comprising a perpendicular shaft I, has alower end fastened permanently to base 2. On the upper end of shaft l, aT 3 is fastened by means of a set screw 4; a horizontal shaft 5 fits inT 3, held in place by set screw 6. Upon each end of the horizontal shaft5 is a last holder 1, upon which lasts 8 are held in place by means ofbolts 9. Last plates l0 fit on bottom of the lasts 8 and are held inplace by means of pins I I fastened securely to last plates l0, saidpins ll slip into holes I2 drilled in the lasts 8.

The last holders 1 are held on the ends of the horizontal shaft 5 bymeans of slots I 3 in the last holder bearings. A pin !4 fits loosely inslot l3 and screws into shaft 5. When shoes are placed upon the lasts 8,lasts 8 and holders 7 are in position A. The heels of last holders 1rest on a horizontal shaft l5; said shaft l5 fits in a T I6, held inplace by a set screw H. T l6 is fastened to the upper end of aperpendicular shaft ill by a set screw I9; the lower end of shaft I8 isfastened permanently to the base 2.

After shoes have been placed upon the lasts 8 and cement has beenapplied to the bottoms of the shoes and their new soles, the soles areplaced upon the bottoms of the shoes and tacked temporarily in place.

The last holders 1 are then swung to position B. The ends of the slotsIf, in last holders 1 bearings striking pin l4, act as stops and shoesare held directly over the rubber pressure pads 20. The rubber pressurepads 28 rest on a pad holder 21.

The rubber pressure pad 26 has a valve opening (similar to the valvestem used in an inner tube but without an inn r valve and having arubber-lined valve cap). The valve 26 is located on the rear under-sideof press re pad 29 and extends through a hole in pad holder 2|.

The pad holder 2| is bolted to flange 22, said flange being slidable onthe perpendicular shaft l.

Pressure is applied to soles by means of a lever 23 being presseddownward, the other end of lever 23 coming in contact with the lowerpart of flange 22; forcing the fiange 22 upward, and'causing the rubberpressure pads 2|] to press soles firmly against the,bottoms of theshoes. Said lever 23 is pivoted'to base 2' in any convenient manner asindicated in the drawing. The lever 23 is held down by means of a slidebolt 24 being pushed through a hole 25 in the perpendicular shaft 18,and over lever 23.

After the cement has dried thoroughly, the lever 23 is released bypulling back the slide bolt 24. There is now sufficient clearancebetween the soles of the shoes and the rubber pressure pads 29 to allowthe last holders 1 to be swungback into position A.

The temporary tacks are removed while the shoes are still on lasts 8and, if necessary, a couple of tacks are pounded into the shank of thesole. The shoes are then removed from the lasts and are ready to betrimmed and finished.

I am aware that prior to my invention solecementing machines have beenmade using air or water filled rubber pressure pads (air being forcedinto the pads) and used for cementing soles upon shoes after the shoesand soles have been prepared upon a separate jack. I therefore do notclaim such features broadly but I claim:

1. A shoe sole-cementing machine having a last holder comprised of anannular bearing, a front leg fastened rigidly thereto, the leg curvingdownward and terminating in a foot and means provided for fastening thefore part of a plate last thereto, another member fastened rigidly tothe bearing and extending backward in line with said bearing toward theheel of the last; said member making a right angle turn downward to forma rear leg to the last holder; said rear leg having a foot similar tothe front leg, and means provided for fastening the heel part of thelast thereto.

2. A shoe sole-cementing machine having a last holder containing abearing which fits on the end of a horizontal shaft, said bearing havinga slot in the center extending halfway around it, and a pin fittingloosely in the slot; said pin being threaded on one end and screwed intothe horizontal shaft which supports the last holder, the pin serving toprevent the last holder from slipping off the horizontal shaft, to holdthe toe of the last rigid when pressure is applied to the sole of ashoe, and, when the last holder is turned upon the horizontal shaft, theend of the slot in the bearing comes in contact with the pin, thuspreventing the last holder horizontal member parallel to a shaftsupporting a plurality of last holders, and an inflated pad' for eachlast holder, said member being supported by a vertical standard which isfastened to the base of the machine in a position such that when thelast holders are turned so that the lasts are no longer over the padsbut the bottoms of the lasts are up, the heel part of a last holderrests upon the horizontal member before mentioned.

4. In a shoe sole-cementing machine the combination of a base, avertical member, the lower end of the said member fastened securely tothe said base, a horizontal member fastened securely to the top end ofthe aforesaid vertical memher, a plurality of last supports mounted onthe said horizontal member, a plurality of pads made of resilientflexible material underlying the said last supports, a support for saidpads, and means for raising and lowering the said support.

5. In a shoe sole-cementing machine thecombination, of a base, avertical member fastened securely to said base, a slidable table mountedon the said vertical member, a plurality of hollow air filled rubberpads resting on the said slidable table, means for raising and loweringthe said table, a horizontal member fastened to the top of the aforesaidvertical member, a plurality of last supports mounted on the saidhorizontal member, and a plurality of lasts with means for fasteningsaid lasts to said supports, the said last supports being turnable onthe said horizontal member.

6. In a shoe sole-cementing machine, the combination, with a hollow airfilled pressure pad of flexible resilient material, of a support for thepad, a shaft on which the said support is mounted, the support beingslidable on the said shaft, a base to which the said shaft is securelyfastened, a lever pivoted tothe base in a convenient manner for thepurpose of sliding the pad support up and down on the said shaft, andsuitable means provided for locking the said lever down.

KEITH L. VENTERS.

